Home / 78,121.60-107,814.44-44,136.32

Finding the Fourth Proportional to 78,121.60, 107,814.44 and 44,136.32

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Solution

The fourth proportional to 78,121.60, 107,814.44 and 44,136.32 is: 60,911.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,121.60 : 107,814.44 = 44,136.32 : x
  2. Step 2: Convert to fraction form
    78,121.60/107,814.44 = 44,136.32/x
  3. Step 3: Cross multiply
    78,121.60x = 107,814.44 × 44,136.32
  4. Step 4: Simplify right side
    78,121.60x = 4,758,532,624.46
  5. Step 5: Solve for x
    x = 4,758,532,624.46/78,121.60
  6. Step 6: Final answer
    x = 60,911.87

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.